/* base */
:root{--ink:#15243b;--muted:#52627a;--blue:#163fc5;--line:#d9e1ec;--pale:#edf4ff;--white:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--white);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8}a{color:inherit;text-underline-offset:.22em}button{font:inherit}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.35}h1{font-size:clamp(34px,4vw,60px);letter-spacing:-.035em}h2{font-size:30px;letter-spacing:-.02em}h3{font-size:20px}p{margin-bottom:1em}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #dc8b00;outline-offset:5px}img{max-width:100%;height:auto}::selection{background:#c7d9ff} .skip-link{position:absolute;top:-80px;left:20px;z-index:10;background:#fff;padding:12px}.skip-link:focus{top:6px}
/* layout */
.header-inner,.body-width,.footer-inner,.footer-bottom{max-width:1160px;margin-inline:auto;padding-inline:32px}.site-header{border-bottom:1px solid var(--line);background:white}.header-inner{min-height:88px;display:flex;align-items:center;justify-content:space-between;gap:24px}.welcome{background:#1136b2;color:white;display:grid;grid-template-columns:minmax(0,780px) minmax(230px,380px);justify-content:center;gap:0;padding:64px max(32px,calc((100vw - 1096px)/2)) 82px}.welcome-inner{max-width:760px;padding-right:50px}.body-width>section{margin-block:68px}.reading-main{max-width:880px;margin:0 auto;padding:28px 32px 90px}.page-heading{padding:32px 0 38px;max-width:800px}.section-heading{max-width:660px;margin-bottom:32px}.site-footer{background:#132137;color:#e5ecf7;margin-top:40px}.footer-inner{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:52px;padding-block:52px}.footer-bottom{border-top:1px solid #38465b;padding-block:18px;font-size:12px;display:flex;justify-content:space-between}.guide-copy{font-size:17px}.guide-copy h2{font-size:27px;margin:48px 0 20px}.guide-copy h3{margin:24px 0 12px}.guide-copy li{margin:14px 0}.guide-copy p{line-height:1.95}.guide-copy a{color:var(--blue)}
/* components */
.brand{display:flex;gap:12px;align-items:center;text-decoration:none;font-size:23px;font-weight:750;line-height:1.2;white-space:nowrap}.brand-caption{display:block;font-size:9px;letter-spacing:.19em;font-weight:650;color:var(--muted);margin-top:6px}.site-nav{display:flex;gap:26px;font-size:14px;font-weight:600}.site-nav a{text-decoration:none;padding:12px 0}.site-nav a:hover{color:var(--blue)}.menu-toggle{display:none}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.11em;margin-bottom:18px;color:var(--blue)}.welcome .eyebrow{color:#bacfff}.welcome h1{font-size:clamp(42px,4.6vw,68px);margin-bottom:24px}.hero-description{font-size:18px;max-width:540px;color:#e2eaff;line-height:1.85}.primary-button{display:inline-flex;align-items:center;justify-content:space-between;gap:26px;background:var(--blue);color:#fff;padding:14px 22px;text-decoration:none;font-size:15px;font-weight:650;min-height:52px;border-radius:4px}.welcome .primary-button{background:white;color:#1536a5;margin:8px 0 24px}.primary-button:hover{filter:brightness(.94)}.scope-note{max-width:570px;font-size:12px;line-height:1.9;color:#cedcff;margin-bottom:0}.hero-side{align-self:center;border-left:1px solid #6c89e0;padding:4px 0 4px 44px}.hero-side>span{font-size:12px;color:#c2d2ff;display:block;line-height:1.8;max-width:200px}.hero-side p{font-size:26px;font-weight:650;margin:15px 0;padding-bottom:14px;border-bottom:1px solid #4767c6}.hero-side p:last-of-type{border:0;margin-bottom:18px;padding-bottom:0}.entry-pair{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:8px;overflow:hidden;box-shadow:0 15px 45px #1733680c}.body-width>.entry-pair{margin-top:-26px;position:relative;background:white}.stage-entry{display:block;padding:34px;text-decoration:none}.stage-entry+ .stage-entry{border-left:1px solid var(--line)}.stage-entry:hover{background:#f6f9ff}.stage-label{font-size:12px;display:block;color:var(--blue);margin-bottom:12px;font-weight:700}.stage-entry h2{font-size:24px;margin-bottom:15px}.stage-entry p{font-size:15px;color:var(--muted);max-width:430px}.entry-action{display:flex;justify-content:space-between;color:var(--blue);font-size:14px;font-weight:600;margin-top:22px}.section-heading p:not(.eyebrow){color:var(--muted)}.page-types{display:grid;grid-template-columns:repeat(3,1fr);border-top:2px solid var(--ink);gap:35px;padding-top:25px}.page-types p{font-size:15px;color:var(--muted)}.inline-reading{margin-top:20px;font-size:14px;color:var(--muted)}.inline-reading a{color:var(--blue)}.install-section{background:var(--pale);padding:36px 40px;border-radius:6px}.use-steps{padding-left:23px;max-width:800px}.use-steps li{padding:0 0 20px 10px}.use-steps p{font-size:15px;color:var(--muted);margin:7px 0 0}.text-link{font-size:14px;font-weight:600;color:var(--blue)}.error-rows{border-top:1px solid var(--line)}.error-rows>div{display:grid;grid-template-columns:190px 1fr 90px;gap:24px;padding:24px 0;border-bottom:1px solid var(--line);align-items:start}.error-rows p{font-size:15px;color:var(--muted);margin:0}.error-rows a{font-size:13px;color:var(--blue)}.reading-heading{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:20px}.reading-heading h2{margin:0}.reading-heading>a{font-size:13px;color:var(--blue);white-space:nowrap}.guide-list{display:grid;grid-template-columns:1fr 1fr;gap:28px}.guide-link{padding:26px 0 22px;border-top:3px solid var(--blue);min-width:0}.guide-label{font-size:11px;color:var(--muted);display:flex;gap:16px;justify-content:space-between;margin-bottom:16px}.guide-link h3{font-size:22px;margin-bottom:16px}.guide-link h3 a{text-decoration:none}.guide-link p{font-size:15px;color:var(--muted)}.read-more{color:var(--blue);font-size:13px;font-weight:650;display:inline-flex;gap:16px;min-height:44px;align-items:center}.faq-section{max-width:830px}.faq-section details{border-bottom:1px solid var(--line);padding:20px 0}.faq-section summary{cursor:pointer;font-size:17px;font-weight:600}.faq-section details p{font-size:15px;color:var(--muted);padding:18px 0 0;margin-bottom:0}.footer-brand strong{font-size:26px;display:block;margin-bottom:16px}.footer-inner p{font-size:13px;color:#b9c7dc}.footer-inner h2{font-size:14px;margin-bottom:20px;color:#fff}.footer-inner>div>a,.footer-inner .current-page{display:block;font-size:13px;text-decoration:none;margin:12px 0;color:#cbd7e8}.breadcrumbs{display:flex;flex-wrap:wrap;gap:12px;font-size:12px;color:var(--muted)}.breadcrumbs a{text-decoration:none}.lead{font-size:18px;color:var(--muted);max-width:700px;margin:20px 0 0}.definition-list{margin:28px 0}.definition-list>div{display:grid;grid-template-columns:90px 1fr;border-top:1px solid var(--line);gap:20px;padding:20px 0}.definition-list dt{font-weight:700}.definition-list dd{margin:0;color:var(--muted)}.notice{border-left:4px solid var(--blue);background:var(--pale);padding:24px 28px;margin:30px 0}.notice p{font-size:15px;margin:10px 0 0}.article-heading{margin:40px 0 32px;border-bottom:1px solid var(--line);padding-bottom:25px}.article-heading h1{font-size:clamp(32px,3.1vw,46px)}.article-meta{display:flex;flex-wrap:wrap;gap:20px;font-size:12px;color:var(--muted);margin-bottom:0}.article-answer{font-size:20px;font-weight:650;color:#183ca8;line-height:1.9!important}.source-note{font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding-top:22px;margin-top:40px}.archive-list{padding-bottom:30px}.index-bottom{max-width:720px;margin:40px 0 80px}.index-bottom p{color:var(--muted)}.index-bottom a{color:var(--blue)}.help-shortcuts{display:flex;flex-wrap:wrap;gap:12px;border-block:1px solid var(--line);padding:20px 0}.help-shortcuts a{font-size:14px;color:var(--blue);padding:8px 16px;border-radius:4px;background:var(--pale);text-decoration:none}.installation-article{min-width:0}
/* responsive */
@media(max-width:760px){h2{font-size:26px}.header-inner,.body-width,.footer-inner,.footer-bottom{padding-inline:22px}.header-inner{min-height:76px;gap:12px;position:relative;flex-wrap:wrap}.brand{font-size:21px}.menu-toggle{display:flex;gap:12px;border:1px solid var(--line);border-radius:4px;padding:7px 12px;background:#fff;color:var(--ink);min-height:44px;font-size:13px}.site-nav{display:none;width:100%;padding:0 0 18px;gap:0;border-top:1px solid var(--line)}.site-nav.is-open{display:grid;grid-template-columns:1fr 1fr}.site-nav a{padding:14px 0}.welcome{display:block;padding:42px 22px 56px}.welcome-inner{padding-right:0}.welcome h1{font-size:42px;letter-spacing:-.04em;margin-bottom:20px}.hero-description{font-size:16px}.scope-note{font-size:12px}.hero-side{border-left:0;padding:24px 0 0;margin-top:26px;border-top:1px solid #6987dc;display:flex;gap:12px;align-items:center}.hero-side>span{display:none}.hero-side p,.hero-side p:last-of-type{font-size:14px;margin:0;border:0;padding:0;flex:1}.hero-side p+p:before{content:'→';margin-right:12px;color:#9db9ff}.entry-pair{grid-template-columns:1fr}.stage-entry{padding:24px}.stage-entry+.stage-entry{border-left:0;border-top:1px solid var(--line)}.stage-entry h2{font-size:22px}.stage-entry p{font-size:14px}.body-width>section{margin-block:48px}.body-width>.entry-pair{margin-top:-20px}.page-types{grid-template-columns:1fr;gap:14px}.page-types>div{border-bottom:1px solid var(--line);padding:5px 0 12px}.page-types h3{margin-bottom:12px}.page-types p{margin:0}.install-section{padding:28px 24px}.use-steps{padding-left:20px}.use-steps li{padding-left:4px}.error-rows>div{grid-template-columns:1fr;gap:8px;padding:20px 0}.error-rows a{min-height:36px;display:inline-flex;align-items:center}.reading-heading{display:block}.reading-heading>a{display:inline-block;margin-top:14px}.guide-list{grid-template-columns:1fr;gap:18px}.guide-link h3{font-size:22px}.guide-link{padding-top:22px}.faq-section summary{font-size:16px}.footer-inner{grid-template-columns:1fr 1fr;gap:28px;padding-block:36px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block;line-height:2.2}.footer-bottom a{display:block}.reading-main{padding:24px 22px 60px}.page-heading{padding-top:30px;padding-bottom:25px}.page-heading h1{font-size:34px}.lead{font-size:17px}.guide-copy{font-size:16px}.guide-copy h2{font-size:25px;margin-top:36px}.definition-list>div{grid-template-columns:1fr;gap:6px}.notice{padding:22px}.article-heading{margin-top:28px}.article-heading h1{font-size:32px}.article-answer{font-size:18px}.help-shortcuts{gap:8px}.help-shortcuts a{padding:8px 12px}.index-bottom h2{font-size:25px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}